Emulsified asphalt waterproof coating for road bridge and preparation method thereof

A water-emulsion asphalt and waterproof coating technology, used in asphalt coatings, coatings, etc., can solve the problems of slow drying speed, poor adhesion to the base layer, poor storage stability, etc., and achieve fast drying speed, strong base adhesion, and viscosity. small change effect

Active Publication Date: 2018-07-17
BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve many problems such as poor storage stability, slow drying speed, and poor adhesion of the base layer of the existing road and bridge waterproof coatings, and adopt emulsion compounding and other methods to obtain a high solid content, fast drying, and stable storage. , strong adhesion, water-based asphalt coating that meets two road and bridge standards at the same time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Meet the JT / T 535-2015 standard type I formula, the ratio is: water 8, heavy calcium carbonate 20, sodium bicarbonate 0.04, hydroxymethyl cellulose QP15000H 0.06, dispersant SN5040 0.5, wetting agent CF-10 0.3 , polyether modified silane 0.1, polyvinyl alcohol 17-99 3.0, Texanol 1.4, sodium dodecylbenzene sulfonate 3.2, Tuwen-80 0.2, Welan gum 1.2, emulsified asphalt 43, natural latex 8, pure acrylic emulsion 11.

[0033]Produced according to the above method, the waterproof coating product obtained meets the requirements of JT / T 535-2015 standard type I after testing. In addition to meeting the standard requirements, its main advantage is that compared with the standard, the surface drying time is reduced from 4 hours Reduced to 0.5 hours, hard drying time reduced from 10 hours to 2.5 hours, bond strength increased from 0.4MPa to 1.2MPa, high temperature shear resistance increased from 0.16MPa to 0.65MPa, storage stability was significantly improved, and its storage st...

Embodiment 2

[0035] Meet the JT / T 535-2015 standard type II formula, the ratio is: water 7, sodium bentonite 14, sodium bicarbonate 0.03, hydroxymethyl cellulose QP15000H 0.04, water glass 0.4, wetting agent CF-10 0.2, poly Dimethicone 0.03, Polyvinyl Alcohol 17-92 3, Texanol 1.3, Sodium Laureth Sulfate 2.5, NP-10 0.2, Welan Gum 0.8, Emulsified Bitumen 44, Neoprene Latex 10, VAE Latex 4.5, styrene-acrylic emulsion 12.

[0036] Produced according to the above method, the waterproof coating product obtained meets the requirements of JT / T 535-2015 standard type II after testing. In addition to meeting the standard requirements, its main advantage is that compared with the standard, the surface drying time is reduced from 4 hours Reduced to 1.2 hours, hard drying time reduced from 10 hours to 3.8 hours, bond strength increased from 0.5MPa to 1.6MPa, high temperature shear resistance increased from 0.16MPa to 0.48MPa, storage stability was significantly improved, and its storage stability was t...

Embodiment 3

[0038] Meet the JC / T 975-2005 standard PB type I formula, the ratio is: water 9, heavy calcium carbonate 24, potassium citrate 0.05, hydroxymethyl cellulose QP30000H 0.05, dispersant sodium tripolyphosphate 0.6, wetting agent CF-10 0.25, polyoxypropylene oxide ethylene glyceryl ether 0.1, polyvinyl alcohol 17-99 2.0, mineral oil 1.2, sodium lauryl sulfate 2.8, AEO-9 0.25, Welan gum 1.3, emulsified bitumen 40.4, natural rubber latex 5. Nitrile latex 4, pure acrylic emulsion 9.

[0039] Produced according to the above method, the obtained waterproof coating product meets the requirements of JC / T 975-2005 standard PB I type after testing. In addition to meeting the standard requirements, its main advantage is that compared with the standard, the surface drying time is reduced by 4 Hours reduced to 0.8 hours, hard drying time reduced from 8 hours to 2.6 hours, tensile strength increased from 0.5MPa to 1.2MPa, bond strength increased from 0.4MPa to 1.1MPa, and the value of the stor...

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Abstract

The invention discloses an emulsified asphalt waterproof coating for a road bridge and a preparation method thereof. The emulsified asphalt waterproof coating for the road bridge comprises the following components in parts by weight: 3-18 parts of water, 5-50 parts of a fine powder, 0.01-0.1 part of a pH regulating agent, 0.01-0.1 part of hydroxymethyl celluloses, 0.1-1 part of a dispersing agent,0.05-0.5 part of a wetting agent, 0.005-0.2 part of a de-foaming agent, 0.5-5 part of adhesion aid, 0.8-1.5 parts of film forming aid, 0.5-10 parts of fast drying aid, 0.05-0.5 part of a stabilizingagent, 0.3-1.5 parts of a thickening agent, 30-70 parts of emulsified asphalt, 5-30 parts of an acrylic emulsion and 2-30 parts of high polymer latex. The prepared emulsified asphalt waterproof coating for the road bridge is high storage stability, high in product drying speed and stronger in adhesion to a substrate.

Description

technical field [0001] The invention belongs to the field of bridge waterproofing, and more specifically relates to a water-emulsion asphalt waterproof coating for road bridges and a preparation method thereof. Background technique [0002] Existing asphalt-based waterproof coatings for roads and bridges (roads and bridges) that can meet industry standards are mainly obtained by compounding emulsified asphalt and neoprene latex, and then adding other latex modifications, such as patents CN03131701.4, CN201210090043.4, etc., mainly The existing problems include: 1. The stratification is serious, and almost no materials can be used without re-stirring on the construction site; 2. The solid content is low, and the drying speed is slow. It usually takes more than ten hours to carry out subsequent construction, resulting in construction efficiency. Low; 3. Repeated spraying can only meet the construction thickness requirements, and the surface of each layer is sticky after drying...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D195/00C09D7/61C09D7/63C09D7/65
CPCC09D195/00C08K2003/265C08L2205/035C08L7/02C08L33/04C08K3/26C08K5/42C08L11/02C08L31/04C08L25/14C08K3/346C08L9/04C08K5/098C08K5/41
Inventor 李文志吴志强于猛朱明广张磊魏晓虎段文锋
Owner BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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